I recently purchased an edge 530 and a Varia 510 TL. I have updated firmware to the last available firmware through Garmin express:
Edge 530: Firmware 5.50
Varia 510 TL: Firmware 3.70
I am facing huge issue with radar disconnecting/connecting every 30s. It is beeping like ***. My vendor changed my Varia once, but no effect. When using my old edge 520, everything is perfect. All other sensors are working fine with the edge 530 (powermeter, cadence, speed, HRM). I read a lot of thread on forums and this problem seems to appeared during firmware update of one of the two device. Therefore, I would like to try downgrading the firmware of the varia. I was not able to find the procedure for that on the forums.
So basically 3 questions:
-->If someone has the combo edge 530/varia 510 TL which is working properly: which firmware do you have?
-->What is the procedure to downgrade the firmware?
-->Where can I find the old firmware of Garmin devices? Garmin only gives the possibility to download the very last firmware or the last beta
Thanks a lot, because if I am not able to get reliable connection the piece is useless